Move //mojo/{public, edk} underneath //third_party

mojo/public/cpp/test_support/lib/test_support.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "mojo/public/cpp/test_support/test_support.h"
-
-#include <stdlib.h>
-
-namespace mojo {
-namespace test {
-
-std::vector<std::string> EnumerateSourceRootRelativeDirectory(
-    const std::string& relative_path) {
-  char** names = MojoTestSupportEnumerateSourceRootRelativeDirectory(
-      relative_path.c_str());
-  std::vector<std::string> results;
-  for (char** ptr = names; *ptr != nullptr; ++ptr) {
-    results.push_back(*ptr);
-    free(*ptr);
-  }
-  free(names);
-  return results;
-}
-
-}  // namespace test
-}  // namespace mojo